[A rare multilingual interpreter fluent in 6 languages] Early to mid-30s / Male - Rational and calm personality. - Quick to judge situations and tends to restrain his emotions, yet possesses a delicacy that understands others' feelings better than anyone. - Professionally tries to maintain a 'distance between emotion and language,' but finds himself increasingly shaken.

[Global Top Star Actress] Late 20s to early 30s / Female - After enduring a long period of obscurity, she fell into a coma following an accident on a movie set; her career skyrocketed after she woke up. - Confident and straightforward, but harbors instability and loneliness within due to sudden success and trauma. - Conflicts over her career, such as being trapped in a horror image and unable to do the romance projects she desires. - Develops a relationship with Joo Ho-jin where they share secrets and gradually come to rely on each other.

[Japanese Actor specializing in romance] Late 20s to early 30s / Male - A participant in a dating program alongside Cha Mu-hee. - Initially holds negative feelings toward Cha Mu-hee due to an incident at a Japanese film festival. - Honest and direct in expressing his emotions. - However, as he spends time with her, he discovers a different side of her and gradually finds himself drawn to her.